Once again, New Zealand is in the middle of a goldrush. The price of the lustrous metal has more than doubling in the last three years and there is fresh interest in masses of land, largely in Otago, which have gold-bearing potential. Both public and private property is being ‘pegged’, the first step in the complicated process of obtaining a permit to extract. Right now, there’s a stoush going on in the hills near Cromwell where an Australian co…